Question

find the answer of question​

Answer 1

Step-by-step explanation:

a+b=7

ab=12

squaring both sides

(a+b)^2=a^2+b^2+2ab

7^2=a^2+b^2+2×12

49=a^2+b^2+24

49-24=a^2+b^2

25=a^2+b^2

Answer 2

Step-by-step explanation:

$(a + b) ^{2} = {a}^{2} + {b}^{2} + 2ab \\ 49 = {a}^{2} + {b}^{2} + 2 \times 12 \\ 49 - 24 = a {}^{2} + {b}^{2} \\ 25 = a ^{2} + {b}^{2}$

hope this helps

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